Card shelf fire suppression system and method
US6404629B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jul 31, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/1425
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A card shelf fire suppression system includes a card shelf having a backplane and a plurality of slots. The slots are each configured to receive an electronic card adapted for engagement with the backplane. The system also includes an airflow path for providing airflow adjacent the electronic card for dissipating thermal energy generated by the electronic card. The system further includes a damper system disposed proximate the slots and operable to passively activate to substantially prevent airflow through the slots and adjacent the electronic card. The damper system includes a damper, a support, and a thermal fuse. In response to an elevated temperature condition, the thermal fuse deforms causing the damper to become unsupported by the support, thereby accommodating movement of the damper from an open position to a closed position to substantially prevent airflow to the electronic cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.